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Related Experiment Video

Updated: Mar 17, 2026

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Abstinence expectancies and quit attempts.

John R Hughes1, Shelly Naud2

  • 1Vermont Center for Behavior and Health, Department of Psychiatry, University of Vermont, Burlington, VT 05401, United States; University of Vermont, Burlington, VT 05401, United States.

Addictive Behaviors
|July 25, 2016
PubMed
Summary
This summary is machine-generated.

The Perceived Risks and Benefits of Quitting Scale (PRBQ) is reliable for measuring smoking cessation expectancies. However, its validity in predicting actual quit attempts or abstinence duration was found to be poor.

Keywords:
ExpectancyPsychometricsSmoking cessation

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Area of Science:

  • Behavioral Science
  • Psychology
  • Public Health

Background:

  • Numerous scales exist to assess smoking cessation expectancies.
  • The Perceived Risks and Benefits of Quitting Scale (PRBQ) is a widely used measure.

Purpose of the Study:

  • To evaluate the reliability and validity of the Perceived Risks and Benefits of Quitting Scale (PRBQ).

Main Methods:

  • A secondary analysis was conducted on 143 smokers planning to quit.
  • Participants used an Interactive Voice Response system nightly for 3 months to report quit attempts and abstinence.
  • The PRBQ was administered at baseline and at 1, 2, and 3 months.

Main Results:

  • The PRBQ demonstrated high internal reliability (alpha=0.88-0.96) and test-retest stability (ICC=0.67-0.80).
  • Concurrent validity was poor to moderate (correlation=0.09-0.52).
  • Predictive validity was poor, with no significant prediction of quit attempts or abstinence duration.

Conclusions:

  • The PRBQ is a reliable measure for smoking cessation expectancies.
  • Similar to other expectancy scales, the PRBQ exhibits poor validity.
  • Further research is needed to validate the influence of expectancies on smoking cessation.